The Gear You Should Shoot For

If you've yet to get into a normal raid or you can't get into good normal runs on a consistent basis you might be confused on where to get the best gear. It can get confusing deciding on where to use your Warforged Seals. So, allow me to give you some advice on what to focus on, for each gear slot.

For starters, if you've unlocked Ordos by completing the Black Prince quest-line and earning a legendary cape, then you should probably use a Warforged Seal on him every week until you've gotten most of the gear he drops. Ordos can drop a helmet, necklace, shoulder-piece, chest-piece, bracers, and belt. If you have gear in these slots that is less than item level 559, then its worth using a Warforged Seal on this boss.

The following list should help you streamline what you should be using Warforged Seals on. Note, this list does not include any Ordos drops. So, if you have unlocked Ordos, any of the gear listed from the previous paragraph would supersede these drops. There are 559 pants that Ordos can drop as well, but I wouldn't recommend spending a Seal for them, because there are slightly lower tier pants available to you.

• Head - Tier helmet is dropped off of Thok the Bloodthirsty, in The Underhold.  Run The Underhold on LFR until you are ready to run it on flex.
• Necklace - Look into flex drops or use a Burden of Eternity from the Timeless Isle until you get a flex drop.
• Shoulders - Tier shoulders are dropped off of Paragons of the Klaxxi, in Downfall. Run Downfall on LFR to get the shoulders and then run it on flex when you have the gear and party to do so.
• Chest - The Tier chest-piece is the most accessible to you since it drops off of the Sha of Pride, in the Vale of Eternal Sorrow, therefore, you should probably shoot for the flex version of this piece first, and try for the LFR version as a fall-back.
• Bracers - Look into flex drops or use a Burden of Eternity from the Timeless Isle until you get a flex drop.
• Gloves - Tier gloves are dropped off of the Celestials on the Timeless Isle.
• Belt - The best belts, outside of Ordos, can be made by either a Blacksmith, Leatherworker, or Tailor. So, try to negotiate a price with someone who has these professions or check the Auction House if you don't know any.
• Pants - Tier pants are dropped off of the Celestials on the Timeless Isle.
• Boots -  Look into flex drops or use a Burden of Eternity from the Timeless Isle until you get a flex drop.
• Rings -  Look into flex drops or use a Burden of Eternity from the Timeless Isle until you get a flex drop.
• Trinkets - Flex drops are optimal, but if you find yourself in need of a decent trinket, you can buy one for 50,000 Timeless Coins on the Timeless Isle.
• Weapon(s) - Flex weapons are the premier weapons you can get outside of normal raids. However, LFR weapons can be nice temporary substitutes and if you're really desperate, you can buy a weapon off the Timeless Isle for Timeless Coins.  They cost 10,000 coins for a one-hander and 20,000 for a two-hander.
• Shields - Like weapons, the priority is flex, then LFR, and, finally, there is one available for 10,000 Timeless Coins.

So, in summary, here are your priorities on how to spend your Warforged Seals. You should use them on Ordos first, unless you haven't unlocked him, then you should use them on the Celestials until you've gotten both tier pieces that drop. Once these have been run, you can use Seals on bosses that drop helmet, shoulder, and chest tier pieces and then I would recommend using Seals for trinkets, weapons, and/or shield drops.  If you have any left-over seals you can use them at your discretion for drops.

As for Burdens of Eternity, it is important to note that these should only be used for upgrading necklaces, bracers, boots, and rings. If you accumulate Timeless Coins, you can either purchase a Burden of Eternity or a 535 trinket for 50,000.  You should decide which to purchase based on your needs.